Crushing machine



March 12, 1929. 4, DENNY 7 1,704,823

CRUSHING MACHINE Filed Oct. 1926 Patented Mar. 12, 1929.

UNITED STATES JAMES JOHN DENNY, OF SCHUMACHER, ONTARIO, CANADA.

CRUSHING MTACHINE.

Application filed October 1, 1926.

The principal object of the invention is to produce a crushing machine for rocl: or other materials which will reduce rock of either large or small size to a desired li ness in a single operat on, thus reduring cost to the minimum.

A further object is to produce a machine which will not become choked or clogged with the finely crush d stone thus ena jl' the machine being maintained in continuous operation.

The principal feature oi the invention consists in the novel arrangement of a pair of convex-gently disposed travcllim; walk t'oruicd ot a continuous :-erics ot' crushing plates, the rocl; or material to be crushed being fed between the travelling walls and being carried thereby and tl'llmllttl contlmr ously as it advances toward the conxerging end. elnerging therefrom in the ale. red state of fineness.

A further t'eature consists in providing the travelling walls with a series o i' guiding rollers which engage the back surface of the crushing plates of which the walls are formed, the rollers rigidly opposing the outward thrust caused by the rocks as they :n e being crushed between the walls.

In the drawings Figure l. is a side elevational view of a machine constructed in accordance with this invention.

Figure 2 is a longitudinal vertical view of the machine.

Figure 3 is a plan view of the machine.

Figure 4 is a detail illustrating a modified form of crusher plates.

The present invention has been devised particularly for use in mining operations Where it is necessary to reduce large quantities of metal bearingroelc to a tine state of pulverization in order to facilitate the subsequent treatment of the rock for the removal of its metal content.

Various kinds of machines have been our ployed for this purpose principal among them being the common jaw type crusher and stamp mills and rolls. Such macl'iines however have a very limited capacity and do not reduce the rock to a sullicientlv tine state in one operation.

With such machines it is found necessary to employ a great number of machines in order to maintain production, directing the roch through various stages of isintegration by passing it ""rom one machine to tlie other. Such arrangements require consid- Se ial No. 138.988.

erahle power in order to maintain the machines in operation.

The pl't -tilt invention aims to o'rcrcome the e lll'1(l -ii'tlllt l'ealu e by reducing to a single opera ion the cru--;liing oi' the rock, it respective of it iiie and reduc ng the same to an extremely tine ;-'t:1t ol' pulverinalion.

in cart ng tllt present invention into cites-t a 1 i ol' frame mem ers 1 are provided which are spaced apart. blu liportel in suitable i ear n 2 at one end of the frame and tfla'iltllilg tiansvee-eely thcrelactween is a diet? I Sinuiarly disposed at. the other end of ihe machine but preferably at a slightly higher level is the shaft {which is rotatahl -i upported in the bearing 5 carried lo" the lranies 1.

.li k idly lliillllll'ltl on each or the slial ts 3 and l are a pa r heavy sproclql 't wheels 6 and i re. 3r iely the sprockets being mounted on it t shai'isadjacent to the supporting bearings and in alignment with each other.

Hcav) endless chain members-1 H extending around each pair oi a gned sprocket wheels (3 and 2" and secured to these chain members and extending transversely thcrebctwcen are a series oi heavy crushing plates 5), arranged one adjacent the other. The plates 9 are made fairly narrow in order that they will rca lily tollow around the sprockets as the cha ns pass thereovcr and are adapted to present a continuous travelling crushing surface extending between the aligned fipliitlitt members, which suitace. by reason of the difference in levels ol' the sliui's i and i will torn] an incline.

Rollers it) are mounted on the shafts 3 and 4 and serve to support the crushing plates as they pass around the sprockets.

A series of rollers ll carried in blocks 12 mounted in the frame members 1 extend transversely below the upper travelling section of the crushing members, the rollers engaging the undo, snriare oi' the crushing plates 9 and rigidly eupporting the same against outward pressure and maintaining the memb rs in a common inclined plane. lhe rollers 11 are spaced clo;-el v together and extend well up to the rol ers ll) on the shafts 3 and l in order to ctl'cr a continuous support to the crushing plates 9.

Extending transversely oi' the t'rame l and spaced above the shafts 3 and l are the shafts 12) and 14 reig -ectivelv. These shat'ts are preferably arranged in the same horilllt) 

